On a previous post, I mentioned that I had noticed that sometimes my AC fan and my radio would keep running, even after I turned the key off. That post was about a problem with the AC blower fan and radio that turned out to be a loose wire, and was not related to the AC and radio problem in the other post. Today I figured out that the random AC fan and radio running after the key was off is not so random. Both the fan and radio will continue working after the key is off until you take your foot off the brake. They do not come back on when you hit the brake again.

Now...newer cars will allow the radio to run until you open the door, so maybe this thing I'm experiencing is just an earlier version of that? Does anyone else's 1973 240z do this? My theory is that the fan and radio are both on the ACC circuit (both are wired to a blue ACC wire), and for some reason the ACC relay stays on until you release the brake, which turns off the brake lights. Don't know what the brake lights have to do with the ACC circuit, but this is actually kinda nice.

Thanks,

Matt

Bug.

E